Re: HELP: ****sche 944 no spark

DME relay

Try using a three-way jumper plug to replace it. This has 3 spade 
connectors, like the wide ones on the bottome of the relay, connected by 
two wires. Picture the old McDonalds "M".

Don't leave it in when not running the car. It'll explode! Or something.

jonb55198@[EMAIL PROTECTED]
 wrote:
> Hi Group,
> 
> The other day my car would not start.  The battery is fully charged
> and the starter cranks well.  My friend and I did some preliminary
> diagnosis with which we discovered:
> 
> 1. There is 12V at the ignition coil (both wires to ground).
> 2. The resistance/impedance numbers of the coil are within spec.
> 3. There is no water in the coil, we displaced it with lubricant and
> the protective boot looked ok anyway.
> 4. We hooked up a 2 different spark plugs to the output wire of the
> coil (the wire that goes from the coil to the cap) and then grounded
> it and turned the key into the ON position (but not the start
> position) and did not get any spark.
> 5. There is fuel in the rail.
> 
> My question is, if there is 12V at the ignition coil, and the
> resistance numbers are ok, could it still be a bad coil, or does this
> point to something else like a bad DME/ECU, a bad DME Relay, a bad
> crank position sensor or speed sensor?
> 
> I've read in other posts that when these sensors go bad, there is no
> spark... but did the authors of these posts mean to write that when
> these sensors go bad, there will NOT be 12V at the coil?  Please
> help.  Thanks.